Improvement in pumps



UNITED STATES PATENT OFFICE.

EDMUND B. JUCKET, OF PAWTUGKET, RHODE ISLAND.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 45.722, dated January3, 1865.

To aZl whom it may concern.-

Be it known that I, EDMUND B. JUoKE'r,

-o Pawtucket, in the county of Providence and btate of lthode Island,have invented a new and useful Improvement in Pumps; and I do herebydeclare the following to be afull, clear, and exaotdescription of thesame, when taken in connection with the actoinpanyng drawings, and theletters of reference marked theleon, and which said (I awi igsconstitute part of this specification, and represent, in-

Fign re 1, a side view Fig. 2, a verticalcentral section; Fig. 3, acrols central section, and in Fig. 4 a view of the rylinder andvalveplates separated from their case Similarletters indicatecorresponding parts.

My invention relates to an improvement in suction and force pumps; andit consists in the peculiar c )llStt'llOtlOIl (f the cylinder andvalve-seats, whereby much labor is saved in fitting up the pump.

To enable others skilled in the art to construct a pump in accordancewith my invention, I will proceed to describe the same as il' lustiatedin the accompanying drawings.

A is the pump-cylinder, cast with plates a b entirely around it, and ofsuch size as to fill the outer case, a, as seen in Figs. 2 and 3. Apartition, D D, between the two said plates divides them into twochambers, Ell. The

(uter case is of sulfficient height to form an upper and lower chamber,G H.

B is the piston, worked by its rod I through a stuffing-box, c, in thecover. The cylinder, with its plates, is independent of the outer ease,C, as seen in Fig. 4. The chamber E is fitted with valves 01, openinginward, whi h are the inlet-valves. The valves 0 in the chamber I openoutward, and are the outlet-valves.

I form the case 0 with a ledge, 1', around it upon the inside. Upon thisledge, properly packed, I set the cylinder and valves after they areproperly fitted. (See Fig. 2.) I cast the cover k with a flange, Z,which sets into the case and down upon the upper plates, as seen in Fig.2.

Tile piston and rod are constructed and inserted in the usual manner.Bolt the cover to the case, as denoted, and the pump is complete. nofitting about the ease, the work being all performed on the cylinder andplates before they are placed in tha case, and,being so min h lighterthan when the whole is combined min h labor and time are saved inhandling, 850., and the fitting of tie lower head is entire y avoided.

L is the inlet, and N the outlet. Vhen the piston is diawn up, waterenters the lower chamber, H, through the lower valves, 0?, and as itdescends the lower valves, d, are closed, and the water first drawn inis forced out through the lower valves, 0. At the same time water isdrawn into the upper chamber, Gr, through the upper valves, (1, and whenthe piston again ascends the water drawn into the chamber G is forcedout through the upper valves, 0. Ascending and descending, the pistonoperates to draw and force in the usual manner for similar pumps.

Having therefore fully described my invention, what I claim as new anduseful, and desire to secure by Letters Patent, is

The combination of the cylinder and valvepla-tes, constructedindependent of the outer case, substan tia ll y as and for the purposespecified.

E. B. J UOKET.

Vitnesses Jos. 'l. SISSON, HENRY A. MULIGAN.

Thus it will be seen there is little or I

